Christian Gadsbøll, Lars J Björklund, Mikael Norman, Thomas Abrahamsson, Magnus Domellöf, Anders Elfvin, Aijaz Farooqi, Lena Hellström-Westas, Stellan Håkansson, Karin Källén, Erik Normann, Fredrik Serenius, Karin Sävman, Petra Um-Bergström, Ulrika Ådén, David Ley
{"title":"Centralisation of extremely preterm births and decreased early postnatal mortality in Sweden, 2004-2007 versus 2014-2016.","authors":"Christian Gadsbøll, Lars J Björklund, Mikael Norman, Thomas Abrahamsson, Magnus Domellöf, Anders Elfvin, Aijaz Farooqi, Lena Hellström-Westas, Stellan Håkansson, Karin Källén, Erik Normann, Fredrik Serenius, Karin Sävman, Petra Um-Bergström, Ulrika Ådén, David Ley","doi":"10.1111/apa.17429","DOIUrl":null,"url":null,"abstract":"<p><strong>Aim: </strong>We evaluated the increased centralisation of extremely preterm (EPT) births in Sweden in relation to the changes in mortality and morbidity.</p><p><strong>Methods: </strong>Population-based data covering Swedish live births from 22 + 0 to 26 + 6 weeks of gestation during 2004-2007 and 2014-2016 were analysed for associations between time-period, birth within (inborn) or outside (outborn) regional centres, and outcomes.</p><p><strong>Results: </strong>Among 1626 liveborn infants, 703 were born in 2004-2007 and 923 in 2014-2016. Birth outside (vs. within) regional centres was associated with a higher infant mortality even after adjustment for birth cohort, gestational age, birthweight standard deviation score and infant sex (adjusted odds ratio 2.01, 95% confidence interval 1.31-3.07, p = 0.001). The higher 1-year mortality in outborn infants was mainly due to more deaths within 24 h after birth. Outborn infants had a higher incidence of intraventricular haemorrhage grade 3-4 than inborn infants (22% vs. 14% in 2004-2007, and 22% vs. 13% in 2014-2016, both p < 0.05). While survival to 1 year without major morbidity increased in inborn infants (33%-40%, p = 0.008), it remained unchanged in outborn infants (29% vs. 30%, p = 0.88).</p><p><strong>Conclusion: </strong>Centralisation of EPT births contributed to a lower 1-year mortality in 2014-2016 than that in 2004-2007, attributed to a decrease in deaths before 24 h among inborn infants.</p>","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":" ","pages":""},"PeriodicalIF":4.6000,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1111/apa.17429","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}
引用次数: 0
Abstract
Aim: We evaluated the increased centralisation of extremely preterm (EPT) births in Sweden in relation to the changes in mortality and morbidity.
Methods: Population-based data covering Swedish live births from 22 + 0 to 26 + 6 weeks of gestation during 2004-2007 and 2014-2016 were analysed for associations between time-period, birth within (inborn) or outside (outborn) regional centres, and outcomes.
Results: Among 1626 liveborn infants, 703 were born in 2004-2007 and 923 in 2014-2016. Birth outside (vs. within) regional centres was associated with a higher infant mortality even after adjustment for birth cohort, gestational age, birthweight standard deviation score and infant sex (adjusted odds ratio 2.01, 95% confidence interval 1.31-3.07, p = 0.001). The higher 1-year mortality in outborn infants was mainly due to more deaths within 24 h after birth. Outborn infants had a higher incidence of intraventricular haemorrhage grade 3-4 than inborn infants (22% vs. 14% in 2004-2007, and 22% vs. 13% in 2014-2016, both p < 0.05). While survival to 1 year without major morbidity increased in inborn infants (33%-40%, p = 0.008), it remained unchanged in outborn infants (29% vs. 30%, p = 0.88).
Conclusion: Centralisation of EPT births contributed to a lower 1-year mortality in 2014-2016 than that in 2004-2007, attributed to a decrease in deaths before 24 h among inborn infants.